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Eight green DDR5 RDIMM sticks in a row

NEMIX RAM

NEMIX RAM 512GB (8x64GB) DDR5 4800 CL40 ECC RDIMM Dell PowerEdge XE8640 memory upgrade

SKU CH-75T7-KET9A

512 GB server memory kit of eight 64 GB DDR5 4800 CL40 ECC registered RDIMMs at 1.1 V for Dell PowerEdge XE8640

  • Total capacity512 GB (8 × 64 GB)
  • Rated speedDDR5 4800 (PC5 38400)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL40
  • Buffer typeRegistered
  • Rated voltage1.1 V
  • 512 GB total capacity with eight 64 GB modules
  • DDR5 4800 speed rated at PC5-38400 bandwidth
  • ECC registered RDIMM for server data integrity
  • 1 V low-voltage operation reduces power draw
  • Validated for Dell PowerEdge XE8640 rack server

512 GB DDR5 RDIMM kit for Dell PowerEdge XE8640

This 512 GB kit contains eight 64 GB DDR5 4800 registered ECC modules built for the Dell PowerEdge XE8640 rack server. It targets IT teams expanding memory capacity in dense compute or virtualisation clusters where error correction and registered signalling are mandatory.

Upgrade from smaller DDR5 RDIMM configurations

Replacing lower-capacity DDR5 RDIMM sets with this eight-module kit adds 512 GB in a single step when the XE8640 chassis and memory-controller population rules allow all slots to be filled. The jump is worth it when workloads exceed the current memory ceiling and the platform’s qualified-vendor list includes this part number.

512 GB capacity with ECC headroom

Eight 64 GB dual-rank modules deliver 512 GB of registered ECC memory at 4800 MT/s and CL40 latency, operating at 1.1 V. The kit comfortably handles large in-memory databases, heavy virtual-machine density and checkpoint-intensive HPC jobs, while the registered buffer and ECC maintain signal integrity across all populated channels until the platform’s maximum supported capacity is reached.

How it compares

Measured against everything we stock in Model-Specific Memory Upgrades, at today’s prices. Recalculated every night.

Price $13,677.99
Pricier than about 90% of the 21,161 comparable items (median $397.99).
Total capacity 512 GB (8 × 64 GB)
Higher than about 90% of the 20,941 comparable items (median 32 GB).
Price per GB $26.71 per GB
Pricier than about 74% of the 20,941 comparable items (median $8.19 per GB).

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Specifications

Product
Brand nameNEMIX RAM
Product lineDell Server/Workstation Compatible Series Memory
Model nameDell DDR5 4800 MHz ECC RDIMM Registered Server Memory
Part numberMR38400-924K8
Total capacity512 GB (8 × 64 GB)
Product type288-Pin DDR5 RDIMM
Performance
Rated speedDDR5 4800 (PC5 38400)
Processor
ChipsetMajor OEM Samsung, Micron, Hynix
Memory
CAS latencyCL40
ECC supportYes
Buffer typeRegistered
Heat spreaderNo
Memory rank2Rx4
Power
Rated voltage1.1 V
Compatibility
Compatible systemsDell
In the box
Included items512 GB (8 × 64 GB) DDR5 4800 MHz PC5-38400 2Rx4 1.1 V CL40 288-PIN ECC RDIMM Registered Server Memory KIT

Questions about this item

Will the 288-pin DDR5 RDIMM modules fit the Dell PowerEdge XE8640 memory slots?

Yes, the 288-pin DDR5 RDIMM form factor matches the Dell PowerEdge XE8640 DIMM slots, and the kit is validated for that server platform.

What is the correct sequence for populating the eight 64 GB modules during installation?

Follow the Dell PowerEdge XE8640 service manual DIMM population chart; install modules in the prescribed slot order per CPU to enable proper memory interleaving and ECC function.

When should the ECC RDIMM modules be replaced if correctable error counts begin to rise?

Monitor the system management logs for increasing correctable ECC errors; schedule replacement before uncorrectable errors appear to maintain data integrity.

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